helpful inventions and annoying inventions

来源：百度知道编辑：UC知道时间：2024/05/10 23:56:12

列举各五个

helpful inventions:computer, internet, light bulb, cell phone and washing machine.

annoying inventions:其实很难说俄。。我查了一下，有alarm clock, pay toilet, underwear(哈哈哈），automated telephone dialer(不是人工接的那种）。。

Vicky

helpful的三单形式请问you are so helpful. 是什么意思？ "For me,coversation is most helpful... 6 out of 6 people found this review helpful翻译 watching English film is helpful to study English? Give some helpful tips for overseas business travel. Walking,running and horse-riding are all helpful forms of_____ Walking,running and horse-riding are all helpful forms of___ It is English newspaper helpful to English leamers? you were only trying to be helpful？请翻译